Table 3.
Results of mixed model analysis to determine the association between high-gamma activity during the sentence judgement period and those during working memory maintenance/scanning operations. The level of significance was set at p-value at ≤ 0.005, invoking Bonferroni correction for multiple comparisons within 10 regions of interest. HG: high-gamma. WM: working memory.
| (A) Superior temporal region | Estimate (95% CI) | t-value | p-value | (F) Middle frontal region | Estimate (95% CI) | t-value | p-value |
|---|---|---|---|---|---|---|---|
| HG WM maintenance | 0.181 (−0.042 to 0.403) | 1.604 | 0.111 | HG WM maintenance | 0.006 (−0.256 to 0.267) | 0.043 | 0.966 |
| HG WM scanning | 0.280 (0.113 to 0.448) | 3.314 | 0.001 | HG WM scanning | 0.482 (0.265 to 0.699) | 4.389 | 0.000 |
| Hemisphere | 0.016 (−0.019 to 0.052) | 0.970 | 0.348 | Hemisphere | 0.071 (−0.004 to 0.146) | 1.988 | 0.063 |
| Patient age | 0.000 (−0.002 to 0.002) | −0.249 | 0.808 | Patient age | 0.001 (−0.003 to 0.005) | 0.559 | 0.584 |
| (B) Middle temporal region | Estimate (95% CI) | t-value | p-value | (G) Inferior frontal region | Estimate (95% CI) | t-value | p-value |
| HG WM maintenance | 0.074 (−0.169 to 0.317) | 0.604 | 0.547 | HG WM maintenance | 0.155 (−0.203 to 0.513) | 0.858 | 0.393 |
| HG WM scanning | 0.393 (0.180 to 0.607) | 3.635 | 0.000 | HG WM scanning | 0.262 (0.022 to 0.503) | 2.158 | 0.033 |
| Hemisphere | 0.030 (−0.015 to 0.075) | 1.335 | 0.188 | Hemisphere | 0.105 (0.039 to 0.172) | 3.232 | 0.003 |
| Patient age | 0.000 (−0.003 to 0.002) | −0.198 | 0.845 | Patient age | 0.000 (−0.003 to 0.004) | 0.186 | 0.855 |
| (C) Inferior temporal region | Estimate (95% CI) | t-value | p-value | (H) Orbitofrontal region | Estimate (95% CI) | t-value | p-value |
| HG WM maintenance | 0.242 (−0.066 to 0.550) | 1.558 | 0.123 | HG WM maintenance | −0.135 (−0.542 to 0.271) | −0.662 | 0.510 |
| HG WM scanning | 0.316 (0.112 to 0.519) | 3.082 | 0.003 | HG WM scanning | 0.407 (0.065 to 0.750) | 2.360 | 0.020 |
| Hemisphere | 0.056 (0.000 to 0.113) | 2.011 | 0.051 | Hemisphere | 0.059 (−0.022 to 0.140) | 1.468 | 0.149 |
| Patient age | −0.001 (−0.004 to 0.002) | −0.761 | 0.455 | Patient age | −0.004 (−0.009 to 0.002) | −1.318 | 0.206 |
| (D) Fusiform region | Estimate (95% CI) | t-value | p-value | (I) Inferior precentral region | Estimate (95% CI) | t-value | p-value |
| HG WM maintenance | −0.103 (−0.357 to 0.152) | −0.801 | 0.425 | HG WM maintenance | 0.178 (0.049 to 0.307) | 2.732 | 0.007 |
| HG WM scanning | 0.264 (0.021 to 0.506) | 2.158 | 0.033 | HG WM scanning | 0.622 (0.503 to 0.740) | 10.365 | 0.000 |
| Hemisphere | 0.021 (−0.044 to 0.086) | 0.665 | 0.512 | Hemisphere | 0.037 (−0.039 to 0.113) | 1.041 | 0.315 |
| Patient age | 0.000 (−0.004 to 0.003) | −0.066 | 0.948 | Patient age | 0.003 (−0.001 to 0.007) | 1.501 | 0.155 |
| (E) Supramarginal region | Estimate (95% CI) | t-value | p-value | (J) Inferior postcentral region | Estimate (95% CI) | t-value | p-value |
| HG WM maintenance | 0.029 (−0.212 to 0.270) | 0.238 | 0.812 | HG WM maintenance | 0.201 (0.016 to 0.386) | 2.155 | 0.033 |
| HG WM scanning | 0.250 (0.082 to 0.418) | 2.945 | 0.004 | HG WM scanning | 0.751 (0.624 to 0.878) | 11.699 | 0.000 |
| Hemisphere | 0.028 (−0.031 to 0.087) | 1.006 | 0.329 | Hemisphere | 0.027 (−0.039 to 0.094) | 0.867 | 0.398 |
| Patient age | 0.001 (−0.002 to 0.004) | 0.824 | 0.420 | Patient age | 0.003 (−0.001 to 0.006) | 1.560 | 0.136 |